Carrier 45 Series User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53450004-01 Printed in U.S.A. Form 45-6SI Pg 1 12-22 Replaces: 45-5SI
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• CONTROL OFFERINGS
• STORAGE AND HANDLING
• INITIAL INSPECTION
Unit Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• INSTALLATION PRECAUTION
• SERVICE ACCESS
• CODES
• UNIT SUSPENSION
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• CONTROL OPTIONS
VAV CCN Controls and OPEN VAV Controls . . . . . . 4
VVT CCN Controls and OPEN VVT Controls . . . . . . 4
Analog Electronic Controls . . . . . . . . . . . . . . . . . . . . 4
Pneumatic Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Direct Digital Controls (By Others) . . . . . . . . . . . . . . 4
No Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 1 — Install Fan-Powered Box . . . . . . . . . . . . . . 4
• SELECT LOCATION
• POSITION UNIT
• INSTALL UNIT
Step 2 — Make Duct Connections . . . . . . . . . . . . . . . 5
Step 3 — Connect Power Wiring . . . . . . . . . . . . . . . . 5
Step 4 — Set Up System and Calibrate . . . . . . . . . . . 7
• GENERAL
• SET POINTS
• SYSTEM CALIBRATION OF THE INLET AIRFLOW
SENSOR
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Initial Start-Up Procedures . . . . . . . . . . . . . . . . . . . . . 8
Balancing Carrier Fan Terminals . . . . . . . . . . . . . . . . 9
• 45J,K,Q SERIES FLOW UNITS
• BALANCING 45M,N,R PARALLEL FLOW UNITS
Speed Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Setting Fan Air Flow with ECM Motors . . . . . . . . . . 17
• VCU (CONTROL OPTION 6)
• ACU-O, 0-10VDC (0-20MA) INPUT 
(CONTROL OPTION 7)
• ACU-P, 2-10VDC (4-20MA) INPUT (CONTROL
OPTION 8)
General — Single Function Pneumatic Controller
Control Sequences (1300-1305, 1400-1401) . . . . 33
Units with Single-Function Controllers . . . . . . . . . .33
Units with Multi-Function Controllers (Sequences
1306-1317 and 1402-1405) . . . . . . . . . . . . . . . . . . .34
Operation Sequences . . . . . . . . . . . . . . . . . . . . . . . .34
Analog Controls Installation and Balancing
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Thermostat Installation . . . . . . . . . . . . . . . . . . . . . . .35
Programming Thermostat . . . . . . . . . . . . . . . . . . . . .36
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Fan Motor and Wheel . . . . . . . . . . . . . . . . . . . . . . . . .37
• TO CHECK WIRING
• TROUBLESHOOTING
Fan Motor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Fan Motor Maintenance . . . . . . . . . . . . . . . . . . . . . . .37
SAFETY CONSIDERATIONS
See Fig. 1 for the Proposition 65 warning label.
Fig. 1 — Proposition 65 Warning Label
IMPORTANT: Air-handling equipment will provide safe
and reliable service when operated within design specifica-
tions. The equipment should be operated and serviced only
by authorized personnel who have a thorough knowledge of
system operation, safety devices, and emergency proce-
dures. Good judgment should be used in applying any man-
ufacturer’s instructions to avoid injury to personnel or
damage to equipment and property.
WARNING
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is not
disconnected. Electrical shock and personal injury could result.
WARNING
If it is necessary to remove and dispose of mercury contactors
in electric heat section, follow all local, state, and federal
laws regarding disposal of equipment containing hazardous
materials.
!
WARNING: Cancer - www.P65Warnings.ca.gov
45J,K,M,N,Q,R
Fan Powered
Variable Air Volume Terminals

Carrier 45 Series Specifications

General

Brand	Carrier
Model	45 Series
Category	Touch terminals
Language	English

Summary

Safety Considerations and Pre-Installation

Pre-Installation Procedures

Unit handling, inspection, and preparation before installation.

Installation Precautions and Codes

Steps to prevent damage, comply with codes, and suspend the unit.

Control Offerings Overview

Overview of available factory-mounted control options for terminal units.

Installation Process

Install Fan-Powered Box

Selecting location and positioning of the fan-powered box.

Make Duct Connections

Procedures for connecting supply and discharge ductwork.

Connect Power Wiring

Guidance on electrical wiring connections and safety.

Set Up System and Calibrate

Steps for system setup and calibration after installation.

Start-Up Procedures

General Pre-Start Checks

Essential checks before initiating unit start-up.

Initial Start-Up Procedures

Step-by-step guide for the unit's first operation.

Balancing Fan Terminals

Procedures for balancing airflow in fan terminal units.

Setting Airflow Set Points

Adjusting fan and primary airflow settings for optimal performance.

Pneumatic Controls

Single Function Controllers

Details on single-function pneumatic control sequences.

Multi-Function Controllers

Information on multi-function pneumatic control sequences.

Analog Electronic Controls Installation

Installation and balancing procedures for analog electronic controls.

Thermostat Installation

Instructions for installing and wiring the thermostat.

Service and Troubleshooting

Controls Maintenance

Routine maintenance for control systems.

Fan Motor and Wheel Service

Accessing and maintaining the fan motor and wheel.

Fan Motor Wiring and Maintenance

Correct wiring and upkeep for fan motors.

Troubleshooting Fan Motors

Diagnosing and resolving common fan motor issues.